List Of Operation Methods

By operating each of the A/C control switches as shown in the diagram below, it is possible to enter the diagnosis check mode.

Within 5 sec. after turning the ignition on, press the A/C switch 3 times and turn the blower switch from OFF to AUTO.

: Indicates a blower switch operation

A/C Switch Blower Switch

A/C Switch Blower Switch

I18151

3. INDICATOR CHECK

(a) Within 5 sec. after turning the ignition switch on, press the A/C switch 3 times and turn the blower switch from OFF to AUTO.

I18151

Blinking Pi 1

ON OFF

atter sec

I00339

(b) Check that all the indicators light up and go off at 1 second intervals of 4 times in succession.

HINT:

• After the indicator check ends, the system enters the DTC begins automatically.

• Operate the blower switch from AUTO to the other positions when desiring to cancel the check mode.

No Malfunction

Malfunction Detected

4.5 sec. Repeat

4. DTC CHECK (SENSOR CHECK)

(a) Perform an indicator check. After the indicator check is completed, the system enters the DTC check mode automatically.

(b) Read the DTC as indicated by the number of blinks of the A/C indicator.

HINT:

The illustration shows the blinking pattern associated with the DTC 12 and 23. If 2 or more DTCs (abnormalities) are indicated, the lowest number (code) is output first.

(c) Identify the problem using the chart of the DTC.

5. ACTUATOR CHECK

(a) Actuator check mode starts at the same time that DTC check mode starts.

(b) Visually check the airflow by hand, amount of damper operating and operation of the compressor changes according to the set temperature of the A/C control panel, as shown in the chart.

HINT:

To cancel the check mode, turn blower switch from AUTO to except AUTO.

°C (°F)

Blower Level

Air Mix Damper

Air Inlet Damper

Air Outlet Damper

Compressor

1

Max. Cool ^ 20.5 (66)

4

-10 % (Cool)

(-1 %)

FACE (-10 %)

ON

2

21.0 ^ 23.5 (67 ^ 72)

T

T

R/F (82.0 %)

B/L (15 %)

T

3

24.0 ^ 26.0 (73 ^ 77)

17

50 % (Cool/Warm)

R/F (102.0 %)

FOOT (50 %)

OFF

4

26.5 ^ 29.0 (78 ^ 83)

T

T

FRS (110.0 %)

DEF (110 %)

T

5

29.5 (84) ^ Max. Warm

31

100 % (Warm)

FRS (110.0 %)

F/D (90 %)

Blower Switch

I18151

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